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应用SEM、EDS、AES及XPS等分析方法对45钢表面离子渗硫层的组成结构的研究结果表明,渗硫层由沉积于基体表面的硫化物沉积层与少量硫元素渗入基体表层形成的扩散层组成,硫化物沉积层中主要生成了FeS及少量的FeS2,硫化物扩散层中主要形成了FeS。渗硫层的结构组成与减摩性能实验结果结合说明,离子渗硫表面的摩擦因数与未渗表面相比始终较低,是因为离子渗硫层的硫化物沉积层与硫化物扩散层分别在摩擦过程中的不同阶段发挥了减摩润滑作用,且摩擦表面始终存在分解再生的硫化物。
The results of SEM, EDS, AES and XPS analysis on the structure of the ionized sulfurized layer on the surface of 45 steel show that the diffusion of the sulfurized layer from the sulfide deposit deposited on the surface of the substrate and the infiltration of a small amount of sulfur into the surface of the substrate Layer, mainly composed of FeS and a small amount of FeS2 in the sulfide deposit, and mainly FeS in the sulfide diffusion layer. The results show that the friction coefficient of the ionized sulfurized surface is always lower than that of the impermeable surface because the sulfide-deposited layer and the sulfide-dispersed layer of the ionized sulfurized layer are respectively at At different stages in the friction process, it exerts the anti-friction and lubrication effect, and there is always the sulfide that decomposes and regenerates on the friction surface.